The service is operated by Wikimedia Deutschland e.V. with assistance from the Wikimedia Foundation. It consists of thirteen servers as outlined here. The contents of the live databases are replicated in three clusters: S1 (English Wikipedia), S2 (some major languages), S3 (all others), with varying degree of delay (often referred to as replag). Projects[edit]
Meta, a Wikimedia project coordination wiki. Hauptseite – Wikimedia Deutschland. Wikimedia. Wikipedia.